A familiar sight on today's roads and highways, the tractor trailer is actually two individual units which usually are manufactured by two different companies and purchased separately. The tractor contains the engine and the driving unit, called a cab. The trailer, which has wheels under the rear, rests on the back of the tractor. A round disk attaches the two units and allows them to turn separately.

U.S. #2457 is part of the popular Transportation Series. The Transportation Series contains 59 stamps with engraved designs featuring modes of transportation from the baby buggy to the racecar.

This is a great album to start with because it pictures U.S stamps that are easy to find and buy. Pages illustrated on one side only, high quality paper, every stamp identified with Scott numbers. Includes history of each stamp. Affordable - same design as Mystic's American Heirloom album.

Similar to standard American Heirloom album but includes mounts that are already attached to pages, saving you time and effort. Sturdier pages than American Heirloom. Includes Scott numbers and stamp history. This volume is for stamps issued 1935-1966, over 600 stamps. Higher quality album than Heirloom.

A familiar sight on today's roads and highways, the tractor trailer is actually two individual units which usually are manufactured by two different companies and purchased separately. The tractor contains the engine and the driving unit, called a cab. The trailer, which has wheels under the rear, rests on the back of the tractor. A round disk attaches the two units and allows them to turn separately.

U.S. #2457 is part of the popular Transportation Series. The Transportation Series contains 59 stamps with engraved designs featuring modes of transportation from the baby buggy to the racecar.